Carbon/CuO nanosphere-anchored g-C3N4 nanosheets as ternary electrode material for supercapacitors

被引：85

作者：

Vattikuti, S. V. Prabhakar ^{[1
]}

Reddy, B. Purusottam ^{[2
]}

Byon, Chan ^{[3
]}

Shim, Jaesool ^{[1
]}

机构：

[1] Yeungnam Univ, Sch Mech Engn, Gyongsan 712749, South Korea

[2] Yeungnam Univ, Dept Elect Engn, Coll Engn, Gyongsan, South Korea

[3] UNIST, Sch Mech & Nucl Engn, Ulsan 44919, South Korea

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2018年 / 262卷

基金：

新加坡国家研究基金会;

关键词：

Ternary composite; Supercapacitor; g-C3N4; Active carbon; Metal oxide; PERFORMANCE; NANOPARTICLES;

D O I：

10.1016/j.jssc.2018.03.019

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Novel electrode materials for supercapacitors comprised of carbon and copper oxide (CuO) nanospheres on graphitic carbon nitride (g-C3N4) nanosheets, denoted as C/CuO@g-C3N4 are self-assembled via a one-step co-pyrolysis decomposition method. The pure g-C3N4 and C/CuO@g-C3N4 were confirmed by powder X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), thermal gravimetric and differential thermal analysis (TG-DTA), X-ray photoelectron spectroscopy (XPS), N-2 adsorption/desorption studies and Fourier-transform infrared spectroscopy (FTIR). The specific capacitance was 247.2 F g(-1) in 0.5 M NaOH at a current density of 1 Ag-1, and more than 92.1% of the capacitance was retained after 6000 cycles. The property enhancement was ascribed to the synergistic effects of the three components in the composite. These results suggest that C/CuO@g-C3N4 possessed an excellent cyclic stability with respect to their capacity performance as electrode materials.

引用

页码：106 / 111

页数：6

共 15 条

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